Modular medical implant allowing a targeted injection

Abstract

A modular medical implant allowing the targeted injection of a liquid or pasty material into a bone cavity. This implant is produced with four types of modules provided with a lumen and of variable lengths, including: either a male securing principle, referred to as proximal modules, or a female securing principle, referred to as distal modules, or a male securing principle and a female securing principle, referred to as intermediate modules and perforated intermediate modules, that can be secured in a predetermined order and number in order to position the perforated intermediate modules at suitable levels to allow an injection product to be conveyed to and diffused at the targeted locations, via the perforations, while producing the required length of the implant. The implant is intended, in general, for surgical operations and, in particular, for interventional radiology.

The invention claimed is: 
     
       1. A modular medical implant allowing a targeted injection into a targeted injection site, the modular medical implant comprising a proximal module at one end, a distal module at another end, and one or several intermediate modules positioned between the proximal module and the distal module, wherein:
 the proximal module comprises:
 a first proximal module end, 
 a second proximal module end, 
 a proximal module length extending from the first proximal module end to the second proximal module end, 
 a proximal module body configured to receive a clamping tool between the first proximal module end and the second proximal module end, 
 a female imprint at the first proximal module end from which extends an inner lumen passing longitudinally through the proximal module length to the second proximal module end, 
 an exterior bone thread forming the first proximal module end extending along the proximal module length to the proximal module body, and 
 a male securing principle extending from the second proximal module end along the proximal module length to the proximal module body; 
 
 the one or several intermediate modules, of which one or several are perforated intermediate modules provided with perforations, each of the one or several intermediate modules comprises:
 a first intermediate module end, 
 a second intermediate module end, 
 an intermediate module length extending from the first intermediate module end to the second intermediate module end, 
 an intermediate module body configured to receive a clamping tool extending from the first intermediate module end and towards the second intermediate module end 
 a female securing principle at the first intermediate module end from which extends an inner lumen passing longitudinally through the intermediate module length to the second intermediate module end, the perforations of the one or several perforated intermediate modules pass through from the lumen to a periphery of the intermediate module body, allowing for conveying of a liquid or pasty material to targeted locations, and 
 a male securing principle extending from the second intermediate module end to the intermediate module body; and 
 
 the distal module comprises:
 a first distal module end, 
 a second distal module end, 
 a distal module length extending from the first distal module end to the second distal module end, 
 a distal module body configured to receive a clamping tool extending from the first distal module end and towards the second distal module end, 
 a female securing principle at the first distal module end from which extends an inner lumen passing longitudinally through the distal module length to the second distal module end, 
 an exterior bone thread extending from the distal module body along the distal module length to form the second distal module end, 
 
 wherein all of the modules required for producing a desired length of the modular medical implant, are secured to one another by an intermediary of cooperating sets comprising the male securing principles and the female securing principles, thus making it possible to position the perforations of the perforated intermediate module or modules at required levels to target injection of a liquid or pasty material, and 
 wherein the modular medical implant is configured to target a targeted injection site localized inside a bone cavity in order to carry out a filling and/or a consolidation of said cavity, while preventing any risk of constriction in the vicinity of the injection site. 
 
     
     
       2. The modular medical implant allowing a targeted injection according to  claim 1 , wherein each of the modules is of a different lengths, in such a way as to optimise all length possibilities of a final implant and a choice of the positioning of the perforated intermediate module or modules. 
     
     
       3. The modular medical implant allowing a targeted injection according to  claim 1 , wherein each one of the modules is a tube defining the inner lumens providing the modular medical implant with a body whose section is circular, square or polygonal. 
     
     
       4. The modular medical implant allowing a targeted injection according to  claim 3 , wherein the section of the body is circular and each of the modules are provided with flat faces to be able to cooperate with the clamping tool. 
     
     
       5. The modular medical implant allowing a targeted injection according to  claim 1 , wherein the perforations of the perforated intermediate module or modules are oriented perpendicularly to the inner lumen, or slanted by ascending and opening towards the female securing principle or by descending and opening towards the male securing principle. 
     
     
       6. The modular medical implant allowing a targeted injection according to  claim 1 , wherein each male securing principle is intended to cooperate with each female securing principle. 
     
     
       7. The modular medical implant allowing a targeted injection according to  claim 1 , wherein each male securing principle is a mechanical thread, or one or several peripheral lugs, or any other mechanical means. 
     
     
       8. The modular medical implant allowing a targeted injection according to  claim 1 , wherein each female securing principle is a mechanical tapping, or one or several peripheral grooves, or any other mechanical means. 
     
     
       9. The modular medical implant allowing a targeted injection according to  claim 1 , wherein the exterior bone thread of the proximal module and the exterior bone thread of the distal module are provided with self-perforating and self-tapping bone threads.